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From Michael Powe <>
Subject Re: [users@httpd] Module Compiles, Won't Load
Date Thu, 18 Nov 2010 17:02:11 GMT
On Thu, Nov 18, 2010 at 09:17:13AM -0500, Eric Covener wrote:
> On Thu, Nov 18, 2010 at 9:10 AM, Michael Powe <> wrote:
> > Hello,
> >
> > RedHat Linux 64-bit.  IHS 7.0, which is based on Apache 2.2.x and uses
> > APR 1.2.
> >
> > I have a module which compiles on this system but loading fails with
> > the error 'wrong ELF class: ELFCLASS64'.
> >
> > 'file' indicates that this module and other modules in the directory
> > are 64-bit.  Other modules load correctly.
> You're misreading something, your Apache 2.2 based server is 32-bit
> (see apachectl -V) but your compiler creates 64-bit output by default.
> Try adding  -Wc,-m32 or  -Wc,-m31 (z/Linux) to your apxs  invocation.


Thanks for the reply.  It is definitely the case that the module is
being compiled as 64-bit (-m64).  What is confusing is that we did
'file' in the modules directory and the output is 'ELF
64-bit' also.  

We did add -Wc,-m32 to apxs, however it doesn't replace the -m64, it
adds -m32 to the command line so that both -m64 and -m32 are there,
which then causes the compiler to self-destruct.  That's not really a
feature, but I suppose it's not reasonable for the tool to use -Wc to
replace existing arguments.

We will use your comment as a starting point.  Thanks again.


Michael Powe		Naugatuck CT USA
Senor Castro has been accused of communist sympathies, but this means
very little since all opponents of the regime are automatically called
communists.  In fact he is further to the right than General Batista.
  -- "Cuba's Rightist Rebel", The Economist, April 26, 1958

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